The campaign feature images of an indigenous Malay man, an orangutan and a log truck.

The Malaysian-based company says the advertisements are misleading and are not of Ta Ann or its activities in Sarawak.

But Senator Brown says its no different to generic images being used every day in Tasmania's forest debate.

"Everybody knows that this is part of a portrayal of the forest debate in Tasmania, as that advertisement is a very clear exposition as to what's involved in the destruction of forests in Sarawak, of which Ta Ann is one of the five big corporations," he said.